The protein MyoD
A) is a transcription factor that controls the expression of genes involved in the differentiation of muscle cells.
B) controls segment identity in mice.
C) is a transcription factor that activates a gene causing the cell cycle to start in muscle precursor cells.
D) is absent from adult muscle.
E) is the only transcription factor involved in differentiation of mesoderm cells into mature muscle cells.

Question

Quizplus · Accepted Answer

MyoD is a transcription factor that plays a crucial role in controlling the expression of genes involved in the differentiation of muscle cells. It activates the expression of genes encoding muscle-specific proteins, which promote the formation of contractile myofibrils and ultimately the differentiation of myoblasts into mature skeletal muscle cells.

The Protein MyoD